Device for adjusting printing-rollers.



No. 710,747. Patentad Dot. 7, I902.

J. s. BULLUCK.

DEVICE FOR ADJUSTING PRINTING ROLLERS.

7 (Application 104 In. 25, 1901.

(No Model.)

UNITED STATES ATENT OFFICE.

JOHN S. BULLUCK, OF HIGHWOOD, ILLINOIS.

DEVICE FOR ADJUSTiNG PFHNTINGv-FIOLLERS.

SPECIFICATION forming part of Letters Patent No. 710,747, dated October 7, 1902.

Applicationfiled February 25, 1901; Serial No. 48,808. (No model;)

To all whom, it may concern.-

Be it known that I, JOHN S. BULLUCK,a citizen of the United States, residing at I-Iighwood, in the county of Lake and State of Illinois, have invented certain new and useful Improvementsin Devices forAdjustingPrinting-Rollers, of which the following is a specification.

My invention relates to the adjustment of inking-rollers on printing-presses; and its primary object is to provide a simple device for enabling the graduated adjustment of printing-rollers to secure the proper distribution of ink on the form and without injury to the roller.

Another object of the invention is to provide an adjustable truck for printing-rollers, so that the roller may always be maintained in proper relation to the form regardless of the varying size of the roller due to changes in temperature and other causes and to correspond with the character of the form.

Vith these and other ends in-view the invention consists in the novel device hereinafter described, and illustrated in the accompanying drawings, in which- Figure 1 is a perspective view of a portion of a printing-press, showing the arrangement of the trucks to which the adjusting device is applied. Fig. 2 is a side elevation of one of the trucks. Fig. 3 is a transverse sectional view of one of the trucks. Fig. 4 is a perspective view of one of the adj usting-bands.

Referring to the drawings, in which like letters of reference denote corresponding parts in all of the figures, A designates the inkingroller; B, the ink-disk; O, the bed-plate, and D the platen, of a job-press to which my invention is applicable. The inkingrollers carry trucks E, sometimes designated rollerwheels, on their ends, which travel on tracks F, and it is with these trucks my invention is embodied and generally applied.

I employ a truck consisting of a body eand slightly to makea close'frictional engagement with the next band, or I may employ two tongues, as shown in Fig. 4, and turn the free ends down, so that they will enter the notches J of the next band, these notches being located diametrically opposite the tongues. The tongues are formed by slits in the band and are preferably located opposite each other, and in order to avoid weakening the band I make the slits oblique to the edges of the band in the manner clearly illustrated in Fig. i. I do not, however, confine myself to this specific construction of the tongues, as I am aware that the locking devices may be otherwise constructed and arranged to accomplish the desired result Without departing from the scope of the invention.

It will be seen that the specific embodiment of my invention herein described contemplates a series of superimposed bands at the ends of a printing-roller constituting, preferably, the outer section of a truck, on the body of which they are held in place, these bands being removably secured, so as to provide a simple and easy adjustment of the roller. Each of these bands is provided with a pair of locking-tongues, one on each edge thereof, and diametrically opposite the tonguesare notches, into which the downturned ends of the tongues of the next band rest. Byrthis arrangement the locking devices of each alternate band are located diametrically opposite one another, which provides a superior lock for the series of bands. I do not, however, restrict myself to the use of any particular kind of bands or to means for locking them in place, as it is obvious that the details of construction maybe varied without departing from the spirit and scope of the invention.

The invention is particularly adapted for use in connection with the inking-rollers of job-presses; but it can also be used with the inking-rollers of other presses with equivalent results.

When a roller swells by absorption of moisture or the form has a light face, the roller can be adjusted by the addition of one or more bands to preserve its proper relation to the form, and when the roller con tracts or the form has a heavy face it can be adjusted to the form by removing one or more of the hands. This prevents injury to'the roller, which occurs when the same tension is maintained under all conditions and insures a proper distribution of the ink over the form. These bands may be sold separately, to be applied to the trucks now in common use on presses, or they may be sold already applied to trucks as a complete article of manufacture or with new presses from the factory, as it will be understood that no changes need be made in the general character of present trucks in order that myinvention may be embodied therewith. I desire, therefore, to protect my improved adjusting-bands whether they are sold as a separate article and whether they are in actual use or not, and likewise to protect them embodied in a truck.

Having thus fully described myinvention, what I claim and desire to secure by Letters Patent, is-

1. An adjusting device for printing-rollers comprising one or more bands at each end of the roller arranged to travel in contact with a track and adapted to be removed and replaced to adjust the roller.

2. An adjusting device forprinting-rollers comprising a series of superimposed bands at each end of the roller arranged to travel in contact with a track.

3. An adjusting device for printing-rollers comprising a series of superimposed, independent, and removable bands at each end of the rollerarranged to travelin contact with a track.

4. An adjusting device for printing-rollers comprising one or more endless and removable bands at each end of the rollerarranged to travel in contact with a track.

5. A truck for printing-rollers comprising a body having one or more thin bands arranged thereon and adapted to be removed and replaced on the body to change the diameter of the truck.

6. A truck for printing-rollers comprising a body having one or more endless bands arranged thereon and adapted to be removed and replaced on the body to change the diameter of the truck.

7. A truck for printing-rollers comprising a body having a series of superimposed removable bands arranged thereon.

8. A truck for printing-rollers comprising a body and a section built up around the body of superimposed bands having interlocking devices.

9. A truck for printing-rollers comprising a body and a section built up around the body of superimposed independent bands, each of said bands being provided with devices for locking engagement with the next adjacent band.

10. A truck for printing-rollers comprising a body and a section built up around the body of superimposed bands, each of said bands having locking devices formed out of the band itself to engage with the next adjacent band. a

11. A truck for printing-rollers comprising a body and a section built up around the body of superimposed bands, each of said bands having locking-tongues on one side and notches on its opposite side to receive the locking-tongues of another band.

12. A band for an adjusting device for inkin g-rollers havin goppositely-disposed tongues on one side thereof to engage a similar band adjacent thereto.

13. A band for an adjusting device for inking-rollers having oppositely-disposed diagonally-arranged locking-tongues.

14. A band for an adjusting device for inking-rollers havinglocking-tongues on one side thereof and notches diametrically opposite said locking-tongues to receive the tongues of an adjacent band.

15. A band for an adjusting device for printing-rollers having locking-tongues with downturned ends formed out of the band itself and notchesin its edges to receive the ends of the tongues of another band.

16. The combination of a roller-wheel for the form inking roller of a printing press, with a tire therefor having a rib or flange projecting inwardly beyond the periphery of the wheel.

JOHN S. BULLUCK.

Witnesses:

WM. 0. BELT, PAUn SoHMEoHEL. 

